Fill in the blanks.
The ratio of children to adults is 5 : 9.
The ratio of women to men is 2 : 3.
Use LCM and find the following.
- Number of children = _____ u
- Number of women = _____ u
- Difference in the number of men and women = _____ u
- Total number of people = _____ u
Children |
Adults |
5x5 = 25 u |
9x5 = 45 u |
|
Women |
Men |
5 |
2x9 |
3x9 |
25 u |
18 u |
27 u |
(a)
Change ratio into units.
Women : Men : Children
2 : 3 : 2 + 3
2 : 3 : 5
The number of adults is the repeated identity.
LCM of 9 and 5 is 45.
Number of children = 25 u
(b)
Number of women = 18 u
(c)
Difference in the number of men and women
= 27 u - 18 u
= 9 u
(d)
Total number of people
= 25 u + 45 u
= 70 u
Answer(s): (a) 25; (b) 18; (c) 9; (d) 70